Part Details | VARIABLE ATTENUATOR
5985-00-408-5137 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Alternate Parts: CN928TRT, CN-928/TRT, W164A, 5985-00-408-5137, 00-408-5137, 5985004085137, 004085137
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | JUL 15, 1970 | 00-408-5137 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
WAVEGUIDE TYPE
Cross Reference | NSN 5985-00-408-5137
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| CN-928/TRT | 80058 | JOINT ELECTRONICS TYPE DESIGNATIONSYSTEM |
| W164A | 00929 | MICROLAB/FXR |
Technical Data | NSN 5985-00-408-5137
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| FREQUENCY RANGE | 7.050 GIGAHERTZ MINIMUM AND 10.000 GIGAHERTZ MAXIMUM |
| VOLTAGE STANDING WAVE RATIO | 1.15 |
| POWER RATING | 10.0 WATTS AVERAGE |
| INSERTION LOSS AT MINIMUM ATTENUATION IN MAXIMUM DECIBELS | 0.5 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P50.0 |
| OVERALL ATTENUATION ACCURACY IN DECIBELS | M0.05/P0.05 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | WAVEGUIDE TYPE |
| OVERALL LENGTH | 3.500 INCHES NOMINAL |
| OVERALL HEIGHT | 5.750 INCHES NOMINAL |
| OVERALL WIDTH | 4.000 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 KNOB |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| WAVEGUIDE FLANGE DESIGNATION | UG-138/U |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 TERMINAL W/MOUNTING HOLES |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 0.737 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 0.676 INCHES NOMINAL |
| OPERATING TEMP RANGE | -40.0 TO +55.0 DEG CELSIUS |